Threshing-machine.



C.L.BEAN.

THRESHING MACHINE.

APPLIOATION FILED JUNE 11, 1909.

9?}, ,239 Patented Sept. 27, 1910.

2 SHEETS-SHEET 1.

WFTNESSES: INVENTOR.

98m M50 mam,

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CHARLES L. BEAN, 0E TOLEDO, OHIO, ASSIGNOR 0F ONE-HALF T0 FRED e. KLINE,0E troL-Eno, onro.

THRESHING-MACHINE.

Specification of Letters Patent.

Patented Sept. 27, 1910.

Application filed June 11 1909. Serial No. 501,562.

To all whom it may concern:

Be it known that I, CHARLES L. BEAN, a citizen of the United States, anda resident of Toledo, in the county of Lucas and State of Ohio, haveinvented a certain new and useful ThreshingNfachine; and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to the figures of reference marked thereon,which form a part of this specific-a tion.

My invention relates to combined threshers and separators for grain suchas wheat, oats or the like; and has for its object the provision ofsimple, improved and highly efficientapparatus of this class whicheffectually cleans and separates the grain from the chaff and straw, andwhich reduces the grain loss due to insuflicient threshing to a minimum,thus enhancing the practicability and commercial value of apparatus ofthis class.

The operation, construction and arrangement of the parts of theinvention are fully described in the following specification, and whilethe invention in its broader aspect is susceptible of numerousmodifications, a preferred embodiment thereof is illustrated in theaccompanying drawings, in which,

Figure 1 is a central longitudinal vertical section of the mechanismembodying my invention. Fig. 2 is a horizontal section on the line m min Fig. 1, and Fig. 3 is a side elevation of the vertical threshingcylinder and subjacent grain trough.

Referring to the drawings, 1 designates a vertically disposed casingpreferably of cylindrical form, which is disposed between the upper andlower frame parts land 3, respectively, and 4 a vertical shaft which isdisposed centrally within such casing and has its lower end journaled inan end-thrust bearing 5 carried by the frame part 3, and its upper endprojected beyond its bearing in the upper frame part 2 and carrying apulley 6 for a drive belt. The shaft at carries a drum or cylinder 7within the lower portion of the casing 1 and a fan 8 within the upperportion of such cylinder, as shown, the drum and fan being separated byan annular flange 9 which is secured to the interior of the easing, andprovides a restricted opening between the compartments 1n which the drumand fan are respectively disposed.

Arranged within the casing 1 around the drum 7 and in spaced relation toeach is a separating cylinder, which is open at top and bottom andpreferably comprises a plurality of laterally-spaced vertically-disposedbars 10, but may be of other construction if desired. The bars 10 arerigidly secured at their ends to rings or strips 11 which are heldrigidly spaced from the casing by braces or brackets 12.

The drumv 7 has the lower portion of its circumference provided withspikes 13 while the portion thereof above such spikes is provided with aplurality of spirally arranged fins or blades 1%, which are preferablybroadened from their forward ends rearwardly, as shown. The spikes 13and blades 14: cooperate with the bars 10 and the spiral flange 15carried internally thereby to effect a thorough threshing or separatingof the grain from the straw and chaff passing around the space betweenthe drum and such bars. The fins 1:1 and flange 15 are spirally arrangedto effect a gradual elevation of the straw within the annular spacebetween the drum and separator-bars 10 as it is driven around such spaceby a rotation of the drum. The forced draft created through the interiorof the casing l by the operation of the fan 8 also tends to draw thestraw and chaff upwardly through the casing and into the fan chamberwhile the grain is driven outwardly through the spaces between the bars10 by centrifugal force and then drops through the annular space 16surrounding such bars into the annular delivery-trough 17 at the bottomthereof. The inner wall of such trough is formed by the annular flange18, which rises from the bottom thereof and is preferably inclinedinwardly as shown. An outlet 19 for the grain is provided at one side ofthe trough 17.

Secured to and projecting radially fromthe lower end of the drum 7 is anannular flange 20 which has its outer edge preferably terminating underthe lower ends of the separator bars 10 in spaced relation thereto. Thisflange prevents the straw and chafi from entering the trough 17 butpermits the grain falling thereon to be thrown outwardly into the troughthrough the space provided between the outer edge of such flange and thelower ends of the bars 10. Attached to the underside of the flange 20and projecting downwardly into the trough 17 are a plurality of wings21, which revolve with the drum and serve to move grain in the trough tothe outlet 19.

22 designates a plurality of inclined flanges which are arranged atintervals around the top of the flange 20 and are inclined from theirforward ends rearwardly, with reference to the direction of rotation ofthe drum, so as to tend to lift straw and chaff falling on the flangeinto position to be caught by the air currents created by the fan 8 andto be acted on by the spikes 18.

The drum 7 is preferably formed at its upper end with an upwardly andoutwardly inclined deflector flange 23, which causes an out arddeflection of the straw and chaff as they pass around the upper edge ofthe drum to enter the fan chamber. The deflection of the straw, etc., inthis manner tends to throw whatever grain may be left unseparatedoutwardly over the tops of the bars 10 and into the space 16 throughwhich it drops to the trpugh 17.

24c designates the usual spiked threshing cylinder, which is disposed inrear of the casing 1 with its axis in a plane near the top of suchcasing and operates over the usual spiket. concaves and grate bars 26,which latter are curved so as to direct the grain and straw upwardly tobe obstructed and directed downwardly and rearwardly by the curveddeflector plate 27, as indicated by the arrows. Disposed intermediatethe cylinder 24 and easing 1 below the plane of the former is a secondspiked cylinder 28, which operates over a set of grate bars 29 extendingtransversely of the machine or longitudinally of the cylinder 28. Theset of grate-bars 29 has its rear end curved partially around thecylinder 28 and connected to the forward end of the set of bars 26 by avertical plate or partition 30, and has its forward end inclineddownwardly from beneath the cylinder 28 and projected through an opening31 in the lower portion of the contiguous side of the casing 1 andterminates adjacent the outer edge of the flange 20 so as to direct thegrain and straw thereon through an opening which is provided in thecylinder formed by the separator-bars 10 in register with the opening31. Secured to the tops of the bars 29 are a plurality of strips whichare disposed diagonally thereof, as shown in Fig. 2 to cause the matterto pass over the gratebars substantially tangential to the drum 7 in thedirection of rotation thereof. The placing of the cylinder 28 below theplane of the cylinder 24: is found to be quite an important feature inthe practical and efficient working of the mechanism. The grain whichfalls through the grate-bars 26 and 29 drops upon the inclinedbottom-plate or floor 33 and is directed thereby into the trough 17.

In the operation of my invention, the grain is fed between the cylinder24: and concaves 25 in the usual manner, thence upwardly over thegratebars 26 and is deflected downwardly between the cylinder 28 andgrate-bars 29 by the deflector 27. The grain in passing over thegrate-bars 29 is directed by the strips 32 to pass through the opening31 in the casing in a direction which is substantially tangential to thedrum 7 to adapt it to enter the space between the drum 7 and theseparator bars 10 in the direction of rotation of the drum. The spikes13, fins 14, and spiral flange 15 cooperate with the bars 10 to effect athorough separation of the grain from the straw and chafl and cooperatewith the draft created by the fan 8 to effect an elevation of the strawand chaff to the top of the drum, whence it is drawn by the air draftinto the fan chamber and is then forced outthrough the delivery opening34 to the stacker. As the grain is separated from the straw, Q\C., it isthrown outwardly through the spaces between the bars 10 and permitted todrop by gravity through the space 16 to the trough 17 where it is movedby the revolving wings 21 attached to the drum and delivered to theoutlet 19.

ith this apparatus it is found that the grain is not only entirelyseparated from the straw but is also thoroughly winnowed and cleaned.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent, is,

1. In an apparatus of the class described, the combination of a rotarydrum having a vertical axis, and its circumference provided withprotuberant portions, a plurality of laterally spaced verticallydisposed bars arranged around the drum and adapted to cooperatetherewith to separate 'rain and straw fed therebetween, and a flangespirally secured to the inner side of said bars around the drum,substantially as described.

2. In an apparatus of the class described, the combination of a rotarydrum having a vertical axis, a plurality of spikes carried by the lowercircumferential portion of said drum, a plurality of spirally arrangedfins carried by the upper circumferential portion of said drum, and aplurality of laterallyspaced verticallydisposed bars arranged aroundsaid drum and adapted to cooperate therewith to separate grain and strawfed therebetween.

3. In an apparatus of the class described, the combination of a rotarydrum having a vertical axis, said drum having its circumference providedwith a plurality of spikes and spirally arranged fins, which finsbroaden from their forward ends rearwardly, and means arranged aroundthe drum and adapted to cooperate with said spikes and fins to separategrain from straw fed therebetween and having spaces for the escape ofgrain.

a. In an apparatus of the class described, the combination of a rotarydrum having a vertical axis, a plurality of spikes and spirallyarrangedfins carried circumferentially by said drum, a separator screen arrangedaround the drum to cooperate with said spikes and fins to separate grainfrom straw fed between such drum and screen, and a spiral flange securedto the inner side of the screen and adapted to cooperate with saidspikes and fins to effect an elevation of said straw.

5. In an apparatus of the class described, the combination of a casinghaving an annular trough therein provided with an outlet, a drumdisposed within said casing and having a vertical axis, and meansarranged around the drum within the casing for cooperating therewith toseparate grain and straw fed therebetween and adapted to permitseparated grain to pass therethrough whereby it may drop without suchmeans into said trough.

6. In an apparatus of the class described, the combination of a casing,a fan disposed in the upper part thereof for creating a forced drafttherethrough, a separator drum disposed within the lower portion of saidcasing and having a vertical axis, laterally spaced vertically disposedseparator bars arranged around the drum to cooperate therewith toseparate grain from straw fed therebetween, means associated with saidbars and drum for cooperating with the forced draft for effecting anelevation of the grain and straw fed between said separator parts, and atrough disposed at the bottom of the casing for receiving the sep aratedgrain.

7 In an apparatus of the class'described,

the combination of a casing, a rotary separator drum disposed thereinand having a vertical axis, separator means arranged around the drum andadapted to cooperate therewith to separate matter fed therebetween, atrough disposed at the bottom of the drum in position to catch a portionof the separated matter, said trough having an outlet at one sidethereof, and means carried by the drum and projecting within the troughfor effecting a movement of the matter within the trough to the outlet.

8. In an apparatus of the class described, the combination of a casing,a rotary separator drum disposed therein and having a vertical axis,stationary separator means arranged around said drum within the casingand adapted to cooperate with the drum to separate matter fedtherebetween, a flange projected radially from the lower portion of thedrum, a trough disposed in the lower portion of the casing said troughhaving an outlet at one side thereof and means attached to said flangeand projecting within the trough for effecting a movement of the mattertherein when the drum is rotated.

9. In an apparatus of the class described, the combination of a casinghaving two superimposed communicating chambers, a shaft projectingvertically through said chambers, a fan carried by said shaft within theupper chamber for creating a forced draft through the casing, aseparator drum carried by the shaft within the lower chamber, stationaryseparator means arranged around the drum and adapted to cooperatetherewith to effect a separation of matter fed therebetween, spirallyarranged means annularly carried by the drum, spirally arranged meanscarried by said stationary separator means, said two spirally arrangedmeans being adapted to cooperate with the air draft to elfect anelevation of the matter when the drum is rotated, a delivery troughdisposed within the casing at the bottom of the drum, and means movablewith the drum for effecting a movement of the matter within the trough.

10. In an apparatus of the class described, a casing pneumatic stackermeans associated therewith, a separator drum disposed within said.casing and having a vertical axis, said drum having an annular deflectorflange at its upper end, stationary separator means arranged around thedrum and adapted to cooperate therewith to separate matter fed betweenthem, and means carried by the drum and said separator means for cooperating with the pneumatic stacker means to effect an elevation of aportion of such matter.

11.. In an apparatus of the class described, a casing, a rotaryseparator drum disposed within said casing and having a vertical axis,stationary separator means arranged around the drum and adapted tocooperate therewith to effect a separation of matter fed therebetween,an annular flange projecting horizontally from the lower edge of thedrum, and a plurality of inclined memhers associated with said flangeand adapted to effect an elevation of matter fed between the drum andsaid separator means.

In testimony whereof I have hereunto signed my name to thisspecification in the presence of two subscribing witnesses.

CHARLES L. BEAN.

CORNELL Sorrnnrnna.

